Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Remote sensing

Evaluation of the Operational Speed for Iraqi Railways Using Geomatics Techniques

Maysoon Mohamed Hamed; Ammar A.M. Shubber; Abudl Al Razzak T.Zboon

Engineering and Technology Journal, 2016, Volume 34, Issue 12, Pages 2249-2257

Theresearch evaluation is the current operational speeds of Iraqi railway lines within Geomatics techniques . It aims improving operational speeds where fined the level of speeds in Iraq has reached in some places to (5 km/h) for the north line. Also determining the factors affecting the speed and causing the decline of the railway, such as soil, the old design of line, the large number of irregular crossings, bad maintenance of fences, means of communication is very bad and almost without safty fences , a single line, except some lines and some climate element which reflected negatively on the performance of the railway, the large number of accidents with operational speed of passenger trains ranged between (20-90) km/h at a time (10) hours for the south line, and (20-80) km/h for north line. it is improved by reducing the time on the orders of caution, time to enter and exit from the station, stop at the stations time, increasing operational speed up to (80-90) km/ h, these improvements one possibly achieved by raising the irregular crossings or convert regular crossings to overpass , treatment of soil, good maintenance (for the rail lines, the protective fence), and the use of modern communication and signals system. A proposal to reduce the trip time from Baghdad to Basrah to (5.13) hour at a percentage 23% to (98-110.7) km/h(because it’s the only working line) as in the case at India where a study for upgrading track standards of conventional track with diesel and electric traction which is close to the specifications of the reality case of the Iraqi railway nets .

Estimation of Land Surface Temperature for Different Regions in Iraq Using Remote Sensing Technique (ETM+); Yaseen K. Al-Timimi yassen-atimimi; Ali M. Al-Salihi; Alaa M. Al-lami

Engineering and Technology Journal, 2014, Volume 32, Issue 6, Pages 1084-1091

Temperatures are important factors that have an impact directly and indirectly on human, so the attention to this aspect certainly will be in the interest of human life.
In this research, the land surface temperature was estimated for different regions in Iraq, using the thermal Band of ETM+ sensor mounted in the Landsat 7 satellite. By using ERDAS 8.4 software, the thermal images are converted to thematic maps which represent land surface temperatures. The results showed that the estimated land surface temperatures are 29.7°C, 31.8°C, 17°C, 17.8°C, 17°C, 20.6°C and 30.2°C for Al-Mousl , Taleafer, Al-Ramadi, Heet, Kerbela, Al-Hai and Al-Basrah stations respectively. Also the results show that there is high correlation between the estimated and the observed data with a difference of 1-2°C.